Salix viminalis

Linnaeus

Sp. Pl. 2: 1021. 1753.

Common names: Osier basket willow silky osier
WeedyIntroduced
Treatment appears in FNA Volume 7. Treatment on page 149. Mentioned on page 94, 132, 137.

Stems: branches yellowbrown, gray-brown, or yellowish, not glaucous, glabrous or puberulent; branchlets yellowbrown or yellowish (sometimes color obscured by hairs), glabrous, densely to sparsely villous, velvety, or puberulent. Leaves: stipules (not adnate to petioles), rudimentary or absent on early ones, (late ones sometimes brownish, linear, 5.4–10.4 mm), apex acuminate; petiole shallowly grooved adaxially, 4–13 mm, villous, puberulent, or velvety adaxially; largest medial blade linear, lorate, narrowly oblong, or narrowly elliptic, 53–130 × 5–33 mm, base cuneate, margins strongly revolute, sinuate or apparently entire, (glands epilaminal), apex acuminate, acute, or convex, abaxial surface apparently glaucous (obscured by hairs), densely short-silky, woolly, or tomentose, (midribs prominent, yellowish, and hairy), hairs appressed, spreading or erect, straight or wavy, adaxial dull or slightly glossy, sparsely or moderately densely pubescent, hairs gray; proximal blade margins entire; juvenile blade yellowish green, very densely tomentose or short-silky abaxially, hairs white. Catkins flowering just before or as leaves emerge; staminate stout, 24–48 mm, flowering branchlet 0–2 mm; pistillate densely flowered, 23–55 mm, flowering branchlet 0–6 mm; floral bract brown or tawny, 1.6–2.2 mm, apex convex or rounded, abaxially hairy, hairs straight. Staminate flowers: adaxial nectary narrowly oblong or oblong, 0.6–1.5 mm; filaments distinct; anthers purple turning yellow, ellipsoid to shortly cylindrical, 0.6–0.8 mm. Pistillate flowers: adaxial nectary narrowly oblong or oblong, 0.9–1.4 mm; ovary pyriform, beak gradually tapering to styles; ovules 12–18 per ovary; styles 0.6–1.8 mm. Capsules 4–6 mm. 2n = 38.


Phenology: Flowering Apr-early May.
Habitat: Sandy, open woods, cobble rivershores, lake margins, and roadsides
Elevation: 0-300 m

Distribution

V7 169-distribution-map.gif

Introduced; N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Conn., Ind., Iowa, Maine, Mass., N.J., N.Y., Ohio, R.I., Vt., Europe

Discussion

Salix ×smithiana (S. caprea × S. viminalis) is distinguished from S. viminalis by having leaf blades usually broad, 2.8–4.9(–6.4) times as long as wide, stipes 0.9–2 mm, ovaries short-silky, branches ± brittle at base, and petioles flat to convex adaxially; S. viminalis has leaf blades usually very narrow, 4.7–13.7 times as long as wide, stipes 0.1–0.5 mm, ovaries long-silky, branches flexible at base, and petioles shallowly grooved adaxially.

See Salix ×smithiana [p. 132] and 86. S. pellita for further comparative descriptions.

Selected References

None.

Lower Taxa

None.

"-1.8mm" is not declared as a valid unit of measurement for this property.

... more about "Salix viminalis"
21 +, 4 +, 1 +, 16 +  and 29 +
tomentose +, woolly +, short-silky +  and glaucous +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
glossy +  and dull +
purple turning yellow +
ellipsoid +  and shortly cylindrical +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Rounded (?) +, Convex (?) +, Acute (?) +  and Acuminate (?) +
George W. Argus +
Linnaeus +
cuneate +
Salix sect. Vetrix +
tapering +
yellowish green +
ferruginous +  and white +
short-silky +  and tomentose +
toothed +  and 2-fid +
persistent +
yellowish +, gray-brown +  and yellowbrown +
puberulent +, glabrous +  and not glaucous +
flowered +  and pistillate +
glabrous +  and densely sparsely villous velvety or puberulent +
slender +  and stout +
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
intermediate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
pendulous +, spreading +  and erect +
Osier +, basket willow +  and silky osier +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Conn. +, Ind. +, Iowa +, Maine +, Mass. +, N.J. +, N.Y. +, Ohio +, R.I. +, Vt. +  and Europe +
0-300 m +
tawny +  and brown +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
pistillate +  and staminate +
bisexual +  and unisexual +
Sandy, open woods, cobble rivershores, lake margins, and roadsides +
white +  and gray +
straight +
erect +, spreading +  and appressed +
unbranched +  and spicate +
subterminal +  and axillary +
membranaceous +
hemiamphistomatous +, amphistomatous +  and hypostomatous +
5.3 cm53 mm <br />0.053 m <br /> (13 cm130 mm <br />0.13 m <br />) +
elliptic +, oblong +, lorate +  and linear +
0.5 cm5 mm <br />0.005 m <br /> (3.3 cm33 mm <br />0.033 m <br />) +
arranged +  and alternate +
marcescent +
deciduous +
rudimentary +
entire +, sinuate +  and revolute +
2-7[-10]-carpellate +
pyriform +
glandular-dotted +
velvety +, puberulent +  and villous +
usually convex;flat +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Flowering Apr-early May. +
overlapping +
distinct +
Weedy +  and Introduced +
decumbent;erect +
non-papillate +
cylindrical +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
caducous +  and persistent +
distinct +  and connate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
persistent +  and deciduous +
Salix viminalis +
Salix sect. Viminella +
species +
pointed +  and rounded +
sympodial +, branching +  and heterophyllous +